Employee Benefit Plans (Tables)

3 Months Ended

Mar. 31, 2017

Defined Benefit Pension Plans

Components of Net Periodic Defined Benefit Cost (Income)

Defined benefit plans – The components of net periodic defined benefit pension cost (income) are presented in the table below.

	Three months ended
	March 31,
	2016			2017
	(In thousands)
Interest cost	$	592		$	506
Expected return on plan assets		(735	)		(689	)
Recognized actuarial losses		431			394
Total	$	288		$	211

OPEB

Components of Net Periodic Defined Benefit Cost (Income)

Postretirement benefits – The components of net periodic postretirement benefits other than pension (OPEB) income are presented in the table below.

	Three months ended
	March 31,
	2016			2017
	(In thousands)
Interest cost	$	24		$	20
Amortization of prior service credit		(135	)		-
Recognized actuarial gains		(38	)		(54	)
Total	$	(149	)	$	(34	)